32results about How to "High frequency" patented technology

This invention provides a constant current circuit for human body electrical stimulation, comprising: an MCU having a first port and a second port for selectively outputting digital voltage signals; a first link comprising a first digital-to-analog converter and a first operational amplifier connected in sequence, wherein the first digital-to-analog converter can convert the received digital voltage signal into a positive analog voltage signal and output it externally, and the output terminal of the first operational amplifier is electrically connected to a current output terminal; a second link comprising a second digital-to-analog converter and a second operational amplifier connected in sequence, wherein the second digital-to-analog converter can convert the received digital voltage signal into a negative analog voltage signal and output it externally, and the output terminal of the second operational amplifier is electrically connected to the current output terminal; and a switch selector selectively conducting the electrical connection between the first link and the current output terminal and selectively conducting the electrical connection between the second operational link and the current output terminal.

The utility model relates to pest prevention and control technical field more specifically, relate to a biological control device and pest control system thereof, the biological control device among them includes pipeline, first carry bacteria device, nest board, light shield and tray, is equipped with the mouth on the pipeline, first carry bacteria device is connected in one end of the pipeline, light shield, nest board and tray all are set in the pipeline and are connected with the pipeline, light shield cover is established in the tray and is surrounded into movable cavity between both, nest board is located in movable cavity, the inner chamber of pipeline communicates with movable cavity through the mouth. The utility model overcomes the deficiency that the long-term stable prevention and control effect is difficult to form due to the fact that ants are prone to migrate in the prior art, by providing stable and comfortable habitat and nest building place for ants, ants in nature can be attracted to nest and settle in movable cavity, which is conducive to increasing the frequency and time of contact between ants and the first bacteria carrying device, thereby more effectively carrying and spreading insecticidal microorganisms, forming a long-term stable prevention and control effect.

The utility model provides a centrifugal fan, including volute still include: impeller, the impeller is provided with at least two groups, and at least two groups impeller follow the axial direction of volute, the middle disc is arranged between two groups of adjacent impeller, two groups of adjacent impeller are separated through the middle disc, and the import of middle disc is linked together with the import of volute, each group impeller is provided with several blades, and several blades are arrayed around the axial direction of volute, and the blade of two groups of adjacent impeller is staggered along the projection direction of blade. Through the mode for increasing the number of blade, increase the times of cutting the airflow that enters the volute, thereby improved the frequency of rotation noise, namely BPF noise, make BPF noise frequency far away from the hearing range of human ear, and then reduce the situation that the user hears the rotation noise. In addition, the blade that interlaces can break the shedding vortex that the blade tail edge produces, reduces the broadband noise of fan.

This invention discloses a solid-phase thickening reactor for PETG chips, belonging to the field of polyester chip processing technology. It includes an outer cylinder with an inlet pipe and an outlet pipe installed at its top and bottom, respectively. Support legs are installed on the side of the outer cylinder. Inside the outer cylinder are a supporting cylinder and four movable inner cylinders. Connecting rings connect the supporting cylinder to the movable inner cylinders and between adjacent movable inner cylinders. This invention ensures that each chip can undergo sufficient and uniform heat exchange with the heat medium, eliminating heating "dead zones" and temperature differences in traditional equipment. Based on the synergistic effect of uniform dispersion, controllable feeding, and a three-dimensional thermal field, the raw material can undergo a thickening reaction in the reactor in an optimal state. This ensures the uniformity and thoroughness of the reaction, effectively avoiding quality problems such as chip viscosity differences and yellowing caused by uneven heating or inconsistent reaction times. Therefore, it significantly improves the final product quality, production efficiency, and batch stability of the PETG chips.

The application is suitable for the technical field of laser radar, and provides a laser radar, which comprises a light source, a transmitting module, a receiving module, a transmission module, a detecting module and a signal processing module; the transmission module comprises a first coupler and a plurality of transmission media, wherein the local oscillator beam is transmitted to at least one transmission medium for delay processing through the first coupler, and the delay amount of the at least one transmission medium is different from that of the other transmission media; the detecting module is connected with the transmission module and the receiving module respectively, is used for receiving the echo signal and the delayed local oscillator beam output by the transmission module, performing beat frequency processing on the echo signal and the delayed local oscillator beam to obtain a beat frequency signal, and converting the beat frequency signal into a detecting electric signal; and the signal processing module is electrically connected with the detecting module, is used for determining a to-be-measured object according to the detecting electric signal. The laser radar provided by the application can improve the strength of the detection signal in long-distance measurement.

The utility model discloses a novel swing type planetary ball mill, which relates to the technical field of ball milling equipment and comprises a base, two swing support frames fixed at the top of the base, swing bearing seats fixed at the tops of the swing support frames, a swing frame rotatably connected between the two swing support frames through the swing bearing seats, and a swing arm mechanism arranged on the base. The swing arm mechanism comprises a speed reducer fixed to the base, a motor is installed at the input end of the speed reducer, a rotating wheel is fixed to an output shaft of the speed reducer, a swing arm is fixed to the shaft end of one end of the swing frame, and a connecting rod is rotationally connected between the rotating wheel and the swing frame. Reciprocating swing of the grinding tank can enlarge the coverage range of grinding balls in the tank, the phenomenon that materials on the inner edge or the bottom of the grinding tank are not fully ground in a traditional single rotation mode is reduced, an additional impact direction such as horizontal or vertical vibration can be introduced, energy input in unit time can be improved in combination with original planetary rotation, and the service life of the grinding tank is prolonged. And particularly, the crushing effect on tough materials is better.

This utility model relates to the technical field of PE pipe mixing devices, and more particularly to a PE pipe production mixing device, including a mixing box and fixed blocks; the mixing box is equipped with a mixing component for mixing PE pipe raw materials, and support components are installed on both sides of the mixing box. Two sets of fixed blocks are set at both the front and rear ends of the mixing box. The mixing component includes guide plates, which are arranged crosswise on both sides inside the mixing box. The guide plates have guide grooves inside, and a connecting rod is set inside the guide plate on the side of the guide plate near the inner wall of the mixing box. In this utility model, when the raw materials flow through the guide plates, the guide grooves play a guiding role, changing the flow direction of the raw materials. Through the crosswise arrangement of the guide plates, raw materials with different flow directions meet under the guidance of the guide grooves, promoting the circulation of raw materials in the mixing box, increasing the contact frequency and mixing opportunities between raw materials, and enabling different types and properties of raw materials to fully contact and mix, accelerating the production pace, increasing capacity, and reducing production costs.

This utility model discloses a cell culture dish shaking device, relating to the field of cell culture equipment technology. The utility model includes a housing with a tray on top. A locking mechanism is movably connected to the top of the tray, and a shaking mechanism is fixedly connected to the inner cavity of the housing. The locking mechanism of this utility model employs a design of magnetic locking blocks engaging with slots and magnetic adsorption. When replacing the expansion plate, the experimenter only needs to align the magnetic locking block of the expansion plate with the slot on the tray, and installation can be quickly completed using magnetic force, without the need for any tools. Disassembly only requires applying an external force slightly greater than the magnetic force to separate the expansion plate from the tray, significantly saving experimental preparation and cleaning time and improving experimental efficiency. Furthermore, by replacing expansion plates of different specifications and shapes, it can adapt to cell culture dishes of different sizes, as well as diverse experimental containers such as flasks and deep-well plates, greatly enhancing the adaptability of the device to different experimental needs.

The utility model discloses a kind of biological organic fertilizer grinders, it is related to agricultural engineering technical field, including box and lid, the top of the lid is equipped with servo motor, the driving end of the servo motor is connected with connecting rod, the outer wall of the connecting rod is fixedly installed with first crushing knife, the cross section of the first crushing knife is set as undulating, the utility model is rotated by servo motor after starting drive connecting rod, drive the first crushing knife fixed on it synchronous rotation, the first crushing knife of undulating is with the cutting angle of continuous change produces multidirectional shear force, cooperate arc-shaped crushing knife sharp edge to high toughness, high moisture content raw material is initially crushed;The arc-shaped structure of arc-shaped crushing knife guides material to gather to smashing chamber center, tear fiber class substance by curve motion trajectory, reduce winding phenomenon;Two form three-dimensional cutting network, from multiple plane impact shear material, improve crushing efficiency and uniformity.

The utility model belongs to powder modification auxiliary equipment technical field relates to a kind of powder surface modification equipment, including the installation of modification cylinder, atomization pressurizer and hot air machine on support ring, and feed tank is hung on support ring, detachable installation has hot flow catalytic device on modification cylinder, hot air machine is connected hot flow catalytic device by air pipe, and modification cylinder bottom surface is equipped with stirring cleaning device, and modification cylinder inner chamber side and hot flow catalytic device are all closely attached stirring cleaning device.The utility model through hot flow catalytic device, not only can provide suitable temperature environment for modification reaction, accelerate the performance of chemical reaction, but also can be synergized stirring with stirring cleaning device, promote the flow of powder and modifier, enhance the contact and collision frequency between them, to speed up the speed of modification reaction, shorten modification cycle;Through stirring cleaning device, stick powder is promptly removed in stirring process, reduce the jam and blockage phenomenon of powder in equipment interior.

The application is suitable for the field of heparin sodium crude product production, and provides a continuous drying and smashing integrated machine for heparin sodium crude product production, which comprises a secondary drying and smashing box, a drying and smashing cylinder assembly is arranged in the secondary drying and smashing box, the drying and smashing cylinder assembly is used for receiving heparin sodium wet solid introduced by a primary drying and smashing box; the drying and smashing cylinder assembly comprises a feeding pipe, a power shaft and a drying and smashing cylinder structure; the drying and smashing cylinder structure comprises a drying and smashing outer cylinder and at least two drying and smashing inner cylinders which are sequentially sleeved; the feeding pipe is communicated to the innermost drying and smashing inner cylinder of the at least two drying and smashing inner cylinders through a hose; the power shaft is used for synchronously driving the drying and smashing outer cylinder and the drying and smashing inner cylinders to rotate; the heparin sodium wet solid can be fully guaranteed to be in full contact with the heating body of the cylinder mesh in the sequentially graded smashing process, which is beneficial to linkage and cooperation of the two processes of drying and smashing, and reduces equipment investment cost and maintenance cost.

This invention discloses a data compliance dynamic detection method and system based on deep learning, belonging to the field of data security processing technology. It addresses the problem that existing methods, which focus primarily on text data processing when performing compliance detection based on extracted comprehensive semantic words, lack the ability to comprehensively process multimodal data and comprehensively evaluate complex compliance issues, leading to inaccurate compliance assessments. The method includes preprocessing the original data stream, extracting features from the preprocessed data stream based on data stream type, and using a compliance analysis model to identify and analyze multimodal feature sets based on a standard rule base. In this invention, preprocessing the original data stream filters and reduces noise in the multimodal data, ensuring the authenticity and validity of the data. Furthermore, the compliance analysis model's identification and analysis of multimodal feature sets ensures comprehensive processing capabilities for multimodal data and comprehensive evaluation capabilities for complex compliance issues.

The application discloses a charge pump circuit and a control method. The circuit comprises a plurality of charge-discharge circuits and a filter circuit. The charge-discharge circuit comprises a first switch unit, a charge-discharge unit and a second switch unit connected in sequence. The opening and closing of the first switch unit and the second switch unit realizes the charge-discharge of the charge-discharge unit. The charge-discharge circuit outputs corresponding output signals in different time periods. The superposition of the output signals reduces the amplitude of the ripple on the total output signal and increases the frequency of the ripple on the total output signal. The filter circuit is used for filtering the ripple on the total output signal. According to the charge pump circuit, the number of the charge-discharge circuits is selected, the number of the output signals output by the charge-discharge circuit in different time periods is increased, the superposition of the output signals reduces the amplitude of the ripple on the total output signal and increases the frequency of the ripple, the same filter circuit produces a better filtering effect, and the area and power consumption of the circuit are not significantly increased.

A vibrating sand screening machine, belonging to the technical field of sand screening equipment, includes a counterweight base. A support shell is fixedly installed on the upper surface of the counterweight base. The support shell is cylindrical and has a wave-shaped track on its upper surface. A carrier plate is installed above the support shell. At least three bullseye casters A are fixedly installed on the lower surface of the carrier plate. The bullseye casters A are all rolled on the wave-shaped track. A telescopic drive device is fixedly installed between the lower surface of the carrier plate and the upper surface of the counterweight base. Three uprights are fixedly installed on the upper surface of the carrier plate. A counterweight pressure plate is slidably installed between the three uprights. A locking mechanism is installed between the counterweight pressure plate and at least one of the uprights. This invention enables the material to generate complex and varied motion trajectories on the screen surface of the filter basket. This not only increases the contact frequency and time between the material and the screen, but also fully disperses the material under the action of different directions and forces, thereby completing the screening process more efficiently and significantly improving screening efficiency.

This invention provides a task execution method, apparatus, electronic device, and storage medium, relating to the field of embodied intelligence technology. The method includes: determining redundant feature components from the first task reference information based on the feature sources of feature components and the importance values ​​of each feature source, wherein the importance value of each feature source represents the magnitude of the influence of the feature component of that feature source on the successful output of the robot's expected action by the first VLA model; performing redundancy removal processing on the redundant feature components in the first task reference information to obtain processed first task reference information; inputting the processed first task reference information into the first VLA model to obtain the predicted action of the robot output by the first VLA model; and controlling the robot to execute the task based on the predicted action. Applying the solution provided by this invention can improve the robot's motion control frequency, thereby improving task execution performance.

The application proposes an electrochemical cell system for a vehicle, comprising an electrochemical cell (11) adapted to supply electrical energy to a load (2), an alternating current generator (13) adapted to generate an alternating current, and an alternating current transformer (14), wherein a primary winding (141) of the alternating current transformer (14) is connected to the alternating current generator (13), and a secondary winding (142) of the alternating current transformer (14) is connected to an output of the electrochemical cell (11) in series with the electrochemical cell (11) and the load (2), so that the alternating current is injected from the primary winding (141) into the electrochemical cell (11) via the secondary winding (142) by electromagnetic induction. By means of the application, the electrochemical cell can be injected with an alternating current in a wider frequency range.

This utility model relates to the field of grinding technology, and in particular to a drug powder screening device, including a screen installed in the main discharge chamber of a grinder, and a pushing structure with a pushing plate that can reciprocate on the screen. The pushing structure of this utility model includes: a screen installed on the body of the grinder, a slide rail, a pushing plate supported by the slide rail and capable of sliding on the slide rail, a reciprocating rod with one end fixedly connected to the pushing plate and the other end extending out of the body, a limiting plate installed on the reciprocating rod, a rack fixedly connected to the reciprocating rod, and a gear meshing with the rack. The limiting plate is connected to the body by a limiting structure. The gear can be controlled to rotate by a motor. When the pushing plate reciprocates, it can push unqualified drug particles into the spare discharge chamber. This utility model can avoid excessive accumulation of drugs on the screen by the pushing plate, thereby ensuring the screening efficiency of the screen.

The application relates to a dimming signal conversion circuit and a converter. The conversion circuit comprises a signal decoupling module, a control unit, a dimming driving module and a power module. The input end of the signal decoupling module is connected to an external dimming control system. The control unit is connected to the output end of the signal decoupling module and the input end of the dimming driving module, is used for performing frequency upgrading on the PWM signal output by the signal decoupling module, and sends the frequency-upgraded PWM signal to the dimming driving module. The output end of the dimming driving module is connected to an external lamp. The power module is connected to the dimming driving module. The application can upgrade the PWM frequency output by the dimming control system and effectively eliminate noise.

The utility model is suitable for stirring ball mill device technical field provides a kind of lower into upper closed type stirring ball mill device, including jar body, pump body and upper sieve plate;The jar body top installs discharge bin, slurry outlet is opened on the discharge bin, the valve is arranged at the bottom of jar body, the pump body is connected on valve, the jar body has grinding cavity, the central shaft is arranged in grinding cavity, a plurality of stirring rods are fixed on the central shaft, the upper sieve plate is installed on the top of jar body, the ball adding hole is arranged on the upper sieve plate, the plug can be detachably connected on the ball adding hole, the main shaft hole is opened in the center of the upper sieve plate, the central shaft passes through main shaft hole, the discharge notch is further provided on the upper sieve plate.The utility model solves the problem of ball loss, loss, subsequent separation work complexity and cost increase caused by the fact that the grinding ball is discharged together with slurry when the existing lower into upper stirring ball mill discharges.

This invention discloses an energy-saving grinding component for a sand mill, comprising an equipment housing containing a cooling tank, a grinding chamber located above the equipment housing, a spiral cooling cavity within the grinding chamber, a feeding pipe and a discharge pipe on the grinding chamber, and a cover fixedly mounted on the top of the equipment housing on one side of the grinding chamber. This invention improves the contact shearing efficiency between the grinding chamber and the material and grinding media beads through the coordinated operation of a cam, hollow shaft, grinding drum, and pin, achieving material grinding. Heat exchange is achieved between the cooling water in the spiral cooling cavity and the grinding chamber, enabling temperature control while recycling water resources. It also allows the warm water after heat exchange to quickly and thoroughly mix with the low-temperature cooling water and cooling elements, agitating the water to break up temperature stratification, ensuring the low-temperature stability of the return cooling water, and continuously guaranteeing the cooling effect. The entire process is driven by a single power source, balancing cooling efficiency and energy saving.

The application relates to a high-speed abrasive grain flow polishing device, which comprises a power device and a processing device, the power device comprises a connected motor and a power transmission device, the processing device comprises an abrasive container, and the power transmission device is connected with the abrasive container. The application has the beneficial effect that the hydraulic pump power device of a traditional abrasive flow polishing machine is replaced by a motor, the abrasive is pushed through the power transmission device, high-speed reciprocating pushing is realized, the processing speed and frequency can be effectively improved, and the polishing efficiency is improved.

The utility model discloses a kind of soil remediation reagent proportioning mechanism based on artificial intelligence auxiliary, it is related to soil relevant technical field, including jar body, the top of jar body is equipped with mounting frame, rotating assembly is installed in the inside of mounting frame, rotating assembly includes the drive motor of installation in mounting frame inner wall, the output of drive motor is connected with incomplete gear, the outer wall of incomplete gear is fixedly connected with incomplete gear ring, the inner wall of incomplete gear ring is engaged with spur cylindrical gear, the bottom of spur cylindrical gear is fixedly connected with rotating rod;In the utility model, by a motor, the multiple composite motion of direct-reverse rotation and revolution around a fixed point of the stirring assembly is driven, more complex and changeable flow direction is generated in jar body, the contact area and collision frequency between reagent raw material itself and stirring blade are increased, the proportioning time is shortened, and the overall proportioning efficiency is improved.

The utility model relates to a kind of spinning melt mixers, specifically a kind of dynamic mixer of spinning melt, including mixing cylinder and drive motor, the output shaft of drive motor is fixedly sleeved with transmission shaft, the bottom of transmission shaft is fixedly sleeved with first transmission mechanism, the inside of mixing cylinder is fixedly connected with mounting disc, the utility model has the beneficial effect that: stirring vane sliding assembly is in transmission shaft, transmission shaft and vane are synchronously rotated by drive motor, while vane makes up and down reciprocating sliding, and in each up and down reciprocating stroke of vane, synchronous completion once overturning action;Vane uses arc edge structure, can be reversed by arc edge after overturning and act on melt to change axial flow direction, the design is through the synergistic effect of rotary shear, reciprocating disturbance and periodic overturning change, can form strong turbulent flow field in melt, greatly improve the convection mixing intensity of melt upper layer.

This invention relates to the field of reinforcement learning technology and discloses a method and system for recommending popular science videos on disease knowledge. The method includes: acquiring user account information, medical records, and user habits as recommendation information; storing and recording address tags based on multi-level classification tags; calculating the correlation between users using a hierarchical weighted fusion mechanism based on account information to generate a correlation distribution map; responding to a logged-in user's video push request, matching the recommendation information with the stored address tags for coarse selection to obtain a coarse selection range of videos; calculating the push value for each popular science video based on the coarse selection range and the correlation distribution map, and generating a video recommendation list by sorting the videos in descending order of the push values; and sending popular science videos to terminal devices sequentially according to the order of the recommendation list. This invention prioritizes pushing videos commented on by users with low social relevance to the user, promoting community interaction while protecting health privacy and improving the effectiveness of popular science dissemination.

The application relates to the technical field of electric digital data processing, and discloses a power inspection task unloading state coding method and system, which comprises the following steps: acquiring multi-modal original observation data collected by an inspection terminal in a power inspection task, and identifying key components and state information of a target power equipment based on an image analysis model; performing defect analysis on the key components to generate an evaluation result containing defect types and quantitative severity; fusing task calculation attributes, communication environment parameters and equipment resource states to construct a multi-dimensional state vector; performing normalization and vectorization processing on the dimensional features of the multi-dimensional state vector to output a state space representation for task unloading decision-making of a reinforcement learning intelligent agent. The application solves the problems of disconnection of general state coding, inaccurate decision-making and untimely response in the prior art, and achieves the purposes of precise decision-making, targeted response and energy efficiency improvement.

The application discloses a high-precision three-dimensional vision system based on multi-camera time-sharing acquisition to improve acquisition frequency, and relates to the technical field of three-dimensional vision, comprising: a time-sharing synchronous control module, which is used for generating and outputting a group of trigger signals with precise time sequence offset; an image acquisition unit array, which is composed of at least three spatially distributed image acquisition units, each unit responds to the trigger signal, and sequentially opens its image sensor for image acquisition within a unified system acquisition cycle, and the acquisition windows of each unit do not overlap in time; a time-sharing acquisition cooperative scheduling module, which is used for dynamically solving and assigning the mutually exclusive acquisition window parameters of each image acquisition unit within the acquisition cycle according to scene motion speed, illumination change and system state. The application solves the problem that the existing three-dimensional vision system is difficult to consider high frequency and high precision use scene.

This invention provides a virtual terminal incremental interface rendering system, method, and terminal based on the ISOBUS standard. It first calculates the new hash value of each attribute based on interface object attribute update data extracted from ISOBUS messages, and compares this new hash value with the corresponding attribute hash value cached by the object cache management module to accurately identify the actual changed attributes. Based on this, it determines the update method and generates an update data packet embedding the current version number. Then, considering the visibility of each interface object, user attention, and update frequency, it calculates the rendering priority, combines the target frame rate and rendering time budget, selects the set of objects to be rendered in the current frame, and performs incremental rendering. This invention achieves efficient incremental updates through hash change detection, differential data packet generation, and intelligent rendering scheduling technologies, effectively reducing data transmission volume, improving frame rate, and reducing latency, demonstrating significant performance advantages and broad application prospects.

The application provides a control method of a manual welding detection device, relates to the technical field of welding monitoring, and comprises the following steps: collecting welding heat input measured data in real time in a welding process, wherein the welding heat input measured data comprises an arc light moving pulse signal, an arc voltage and a welding current; calculating a welding heat input measured value based on the welding heat input measured data, and generating a heat input alarm signal when the welding heat input measured value exceeds a heat input threshold value; and calculating a dynamic resistance value based on the welding voltage and the welding current after the welding is completed, and generating a welding leakage alarm signal when the dynamic resistance value meets a preset condition. The application is characterized in that a photosensitive part is arranged in a light shielding tube, and when a welding arc passes through the light shielding tube, the arc light will enter the light shielding tube, so that the photosensitive part is triggered, a group of rectangular pulse signals are output after being regulated, and the instantaneous speed of the arc passing through the light shielding tube is calculated as the welding instantaneous speed.