121results about How to "Wide versatility" patented technology

The invention discloses a spherical nano aluminum oxide polishing solution for silicon carbide wafer polishing, and relates to the technical field of preparation of semiconductor silicon carbide wafer polishing materials, and the spherical nano aluminum oxide polishing solution comprises the following raw materials by weight: 0.5-55% of aluminum oxide, 0.05-25% of an oxidant, 0.1-10% of an inhibitor, 0.01-12% of a surfactant, 0.01-15% of a dispersant, 0.1-10% of a pH regulator, and the balance of high purity water. The preparation process comprises the following steps: (1) preparing materials; (2) grinding material pretreatment; (3) mixing; (4) adjusting the pH value; and (5) high-pressure homogenization. The CMP polishing solution has the characteristics of high removal rate, good suspension dispersion performance, no damage to the surface of the silicon carbide wafer, extremely low surface roughness value, long cycle service life, easiness in cleaning, good universality and the like, and is suitable for CMP polishing of semiconductor silicon carbide wafers.

The invention relates to a small-sample fine-grained image classification method based on retrieval and a multi-modal large model, and belongs to the field of fine-grained image classification, and the method comprises the steps: obtaining all categories of fine-grained images, and setting a category prompt template in combination with the specific features of each category; arranging the fine-grained image data set; performing vectorization model coding on the picture and the category information to obtain an image vector and a text vector; performing retrieval recall on the candidate information; and obtaining a final fine-grained image classification result through a multi-modal large model by using a to-be-classified label-free image sample and a retrieved and recalled image set, text information set and category information set. According to the method provided by the invention, the cost of data set collection can be reduced, and the flexibility and expandability of a fine-grained image classification task are improved.

The invention discloses an equipment test model code generation method based on a large model, and the method comprises the steps: designing an equipment digital test demand analysis module which is used for constructing an equipment digital test identification framework system through combining demand description to extract a digital test demand generated by an equipment test model modeling code; designing a large model training code collecting and processing module, and generating a high-quality code data set; the design equipment test model code library module is used for carrying out structured storage on the high-quality code data set, constructing a knowledge graph based on structured data and designing a vectorization dynamic query function; and designing a large model pre-training and fine tuning module, and performing secondary pre-training and fine tuning on the base code large model by using the high-quality code set and a vectorization dynamic query function to generate a final equipment test model code. According to the method, the code generation speed and accuracy are remarkably improved, and it is ensured that the generated code has wide adaptability and universality.

The invention provides a universal Bipod vibration isolation assembly. The universal Bipod vibration isolation assembly comprises a driving supporting leg, a feedback control device, a spring damping vibration isolator, a passive vibration isolation support, a base, an unlocking gasket and an external cover plate. The bottom of the spring damping vibration isolator is installed in the passive vibration isolation support, the external cover plate is installed on the top of the spring damping vibration isolator, and one or more unlocking gaskets are detachably installed between the external cover plate and the passive vibration isolation support. The two driving supporting legs are installed on the two sides of the passive vibration isolation support respectively, the other ends of the driving supporting legs are installed on the base, and the two feedback control devices are installed on the external cover plate and in the driving supporting legs respectively in the axial direction of the two driving supporting legs. Two-degree-of-freedom vibration isolation can be achieved by connecting the dual-drive supporting legs with the spring damping vibration isolators in series; a plurality of vibration feedback control modes are provided through the combination of a force sensor and an accelerometer; the vibration isolation assembly has two vibration isolation states through the unlocking gasket, the requirement for installation precision is low, and the space occupancy rate is small.

The invention provides a mud-phase shale component quantitative analysis and calculation method, which relates to the technical field of geological mineral exploration and mainly comprises the steps of sample collection and pretreatment, X-ray diffraction pattern acquisition, pattern analysis and mineral component determination, quantitative calculation based on an innovative model, result correction and evaluation and the like. Through an innovative quantitative analysis model and a strict sample processing flow, the content of various mineral components in the mud-phase shale can be more accurately determined, analysis errors are reduced, more reliable data support is provided for geological research and resource exploration, and compared with a traditional method, the method has the advantages that operation steps are simplified, analysis efficiency is improved, and the method is suitable for popularization and application. According to the method, the quantitative analysis of the mud-phase shale components can be completed in a shorter time, the progress of research and exploration is accelerated, the dependence on complex and expensive chemical analysis equipment is reduced, the experiment cost and the human input are reduced, and meanwhile the utilization efficiency of resources is improved.

The invention relates to the technical field of biochemical immune in-vitro diagnostic reagents, in particular to a method for eliminating lipid interference, an immunoturbidimetric kit and application of the immunoturbidimetric kit. Surfactants are added into the kit, that is, one or more compound surfactants with low cost and good lipid solubility are added into a reagent I; therefore, the problem of lipid interference can be effectively solved, the lipid interference can be eliminated by adopting a low-cost, high-accuracy and simple-to-operate method for eliminating lipid interference, and the problems that when an existing kit uses enzyme substances to eliminate lipid interference, the reagent cost is greatly increased due to addition of the enzyme substances, and the detection sensitivity is high are solved. The technical problem that the cost pressure of a conventional biochemical immune reagent is increased is solved, and meanwhile, the method can be widely used in cooperation with various biochemical analyzers and has wider universality, so that the method can be widely applied to the lipid blood sample diagnosis process.

The utility model relates to the technical field of clamp devices, in particular to a plastic part spraying quick-assembly quick-disassembly clamp device which comprises a spraying table, a plurality of sliding grooves are symmetrically formed in the upper surface of the spraying table, and two mounting grooves are symmetrically formed in the two sides of the outer surface of the spraying table. A mounting plate is inserted into a sliding groove to drive a pushing plate to move downwards, a triangular block extrudes the inclined face of the outer side wall of a triangular plate, the triangular plate is extruded to drive a pulling plate to slide along a through groove, and when the triangular block and the inclined face of the triangular plate are missed, a first spring rebounds to push a rectangular plate; a rectangular plate drives a pull plate and a triangular plate to lock the upper surface of a triangular block, a pull ring is pulled to drive the pull plate and the triangular plate to move, locking of the triangular block by the triangular plate is relieved, a second spring rebounds to drive a second circular plate to push a mounting plate, the mounting plate slides out of a sliding groove, a clamping plate can be quickly mounted or dismounted, and the clamping device has good flexibility and adaptability. And the device can adapt to different workpieces with large size differences, and is higher in practicability.

The invention discloses an LLMs combined compression method based on joint optimization, an electronic device and a storage medium, a quantization method and a rarefaction method are combined, errors caused by quantization and rarefaction are minimized at the same time, the method comprises the following steps that 128 fragments are sampled from a WikiText2 training corpus, and each fragment comprises 2048 tags; 2, initializing a diagonal transformation matrix by using a statistical index, carrying out preliminary quantization on a weight by using an equivalent transformation operation, determining a quantization step length and a zero point, and calibrating the quantization step length and the zero point through the data sampled in the step 1; calculating a sparse mask, rearranging weights by using an importance index # imgabs0 #, and preferentially sparsening unimportant weights; carrying out joint optimization; and evaluating the compressed model by using different data sets, and verifying the performance improvement of the model.

A gel pen with multiple modules comprises a pen core module, a pen holding module and a pen cover module, the pen core module comprises a liquid storage cavity used for containing ink and a pen mouth communicated with the liquid storage cavity, the liquid storage cavity and the pen mouth form a pen core part of the gel pen, and the pen core module is exposed out of the gel pen and forms a pen body part used for taking the gel pen. The pen holding module is arranged on the refill module to form a holding part of the gel pen, and the pen cap module is arranged on the pen holding module to be used for protecting a pen mouth of the refill module. According to the gel pen with the multiple modules, different modules can be replaced for use according to requirements of people or scene requirements, and the use experience of people is improved.

The invention discloses a method for predicting flow velocity and Reynolds stress transverse distribution in a vegetation riverway, and belongs to the technical field of hydraulics and river dynamics, and the method comprises the steps: determining a two-dimensional longitudinal flow velocity transverse distribution control equation with average water depth; dividing the riverway into a vegetation area and a non-vegetation area along the direction vertical to water flow by taking the center position of the boundary of the upstream end of the non-submerged vegetation community as an original point; determining a water depth average longitudinal flow velocity transverse distribution analysis model of the vegetation area and the vegetation-free area; providing boundary conditions of the analytical model and solving to obtain transverse flow velocity distribution of each cross section; and constructing a Reynolds stress transverse distribution prediction model based on the predicted flow velocity transverse distribution, and predicting the Reynolds stress transverse distribution. According to the method, the control equation of the flow velocity transverse distribution in the vegetation riverway is deduced from the water flow momentum equation and the continuity equation, solving is carried out according to boundary conditions, and prediction of the flow velocity transverse distribution and Reynolds stress transverse distribution of each cross section is achieved.

The invention discloses a network intrusion prevention strategy generation method based on instantaneous state Markov modeling, and the method comprises the steps: 1, carrying out the Markov modeling according to the instantaneous state of a computer, and obtaining the shutdown probability # imgabs0 # of the computer based on the Markov modeling; step 2, correcting a current network intrusion prevention strategy of the computer according to the shutdown probability # imgabs1 #, specifically, judging whether the current shutdown probability # imgabs2 # is greater than a preset threshold value or not, if so, increasing preset intrusion attack times N, and executing step 3, otherwise, maintaining the current network intrusion prevention strategy, and when the shutdown probability # imgabs3 # does not exceed the preset threshold value within preset time, executing step 3; reducing the number N of preset intrusion attacks to reduce the computer load, and executing the step 3; and 3, judging whether the computer is shut down or not, if so, ending the process, and otherwise, returning to execute the step 1.

The utility model provides a kind of wheel riser area deformation measurement equipment, belong to wheel processing technical field, including workbench, and the positioning part for positioning wheel is respectively provided with detection mechanism on workbench;Detection mechanism includes support column, rotating component, translation component and detection component, support column is vertically fixed in the upper end surface of workbench, rotating component is set to the top of support column, translation component is set to rotating component, detection component is installed on translation component;Positioning part includes positioning column, positioning column is vertically set to the upper end surface of workbench and located in the side of support column, positioning column is positioned in the below of detection component with the spoke surface of wheel upwards for wheel.This wheel riser area deformation measurement equipment provided by the utility model fundamentally solves the problem of poor adaptability of existing equipment, so that the equipment can meet the measurement needs of various specifications of wheel, with wide versatility and high flexibility.

The invention relates to the technical field of image processing, and particularly provides an image data synchronization method, a storage medium and electronic equipment, and the method can comprise the steps: marking a plurality of frames of images collected by a plurality of cameras, and obtaining marked images; putting each frame of marked image in the marked image into a queue according to a time sequence to obtain an image queue; and traversing the image queue, and extracting an optimal synchronous image group from the image queue. According to some embodiments of the invention, on-demand accurate synchronization of image data can be realized.

A crop row center line extraction method based on regional feature point clustering comprises the steps that preprocessing and feature extraction are conducted on a photographed image, then crop feature points are clustered through a DBSCAN algorithm, a plurality of feature point clusters are marked with different colors, a feature point clustering graph is obtained, and a crop row center line is extracted; and dividing the feature point clustering graph into a plurality of horizontal strip regions which are connected in sequence along the height direction, performing median point extraction on feature points belonging to the same feature point cluster, performing color matching on the median points on all the horizontal strip regions, and performing straight line fitting on the median points with the same color to obtain the center line of the crop row. The method can effectively improve the recognition precision, enables the extracted crop row center line to be more accurate and reliable, optimizes the calculation process, remarkably reduces the operation time, improves the overall efficiency, meets the high-efficiency requirements in practical application, is suitable for various different types of crop row structures, and is suitable for popularization and application. And the method has wide adaptability and universality.

The invention discloses an automatic edge cutting solution (system) for workpieces subjected to hot extrusion forming (hot forging), the automatic edge cutting solution (system) replaces manual feeding and discharging of the workpieces, and the automatic edge cutting solution (system) comprises an elevator, a horizontal conveying system, a conveying line, a visual robot system, a horizontal moving and positioning clamp, a feeding mechanical arm, a discharging and detecting system and a master control system. The elevator and the horizontal conveying system are mainly used for lifting scattered workpieces to a horizontal conveying mechanism, and the workpieces are conveyed out as one by one as possible by adopting a horizontal vibration conveying method. The main function of the conveying line is to receive workpieces conveyed out from the flat vibration device, and every time one workpiece falls, the conveying line moves forwards by a certain distance and conveys the workpieces to a visual detectable range. The visual robot system comprises an industrial robot (such as an SCARA robot), a clamp and a visual detection system, and has the functions of identifying workpieces on the conveying line and clamping the workpieces by the industrial robot according to the posture of the workpieces; the translation and positioning clamp is used for placing the workpiece clamped by the industrial robot on the clamp, positioning the workpiece again and then conveying the workpiece to the front of the machine tool for the feeding manipulator to take the workpiece; the feeding manipulator is responsible for clamping the workpieces conveyed by the translation mechanism and then conveying the workpieces into a machine tool die; the discharging and detecting system ensures that workpieces can be punched off every time, no residue is left on the die, and continuous and stable production is ensured; and the master control system ensures linkage of all the systems and ensures stable operation of the whole production process.

The present invention provides a laser triangulation ranging sensor with an annular reflection structure, which performs 360° annular reflection on the laser spot on the surface of the measured target through an annular reflector, and forms an image on the image plane of the camera after passing through the lens, and forms a circular ring. The diameter of the imaging circular ring corresponds to the measured distance of the target, thereby realizing laser ranging. When the laser directivity changes, the position of the imaging circular ring also changes accordingly, but the diameter of the imaging circular ring does not change, thereby completely overcoming the influence of the change in laser directivity in principle. This method can not only completely solve the problem of laser directivity, but also significantly improve the ranging accuracy. The ranging sensor can adopt a general industrial-grade lens and camera, which is low-cost and easy to implement. The overall structure of the sensor is axisymmetric, and has wider practicality and versatility.

The invention discloses a railway sensitive data watermark tracing method based on invisible characters, and the method comprises the following steps: S1, watermark information preprocessing: calculating watermark information needing to be written into abstract information with a fixed length, then generating an invisible character string according to a coding rule, and then carrying out the fragmentation of the invisible character string; s2, watermark information writing: traversing result set metadata to determine a written column and a position thereof, and correspondingly writing invisible character string fragments; and S3, watermark traceability: reading the provided data set file according to rows, extracting invisible character strings, comparing the invisible character strings with pre-stored watermark information, calculating a matching degree, and outputting a traceability result. According to the method, watermark embedding and traceability of the railway sensitive data are achieved, effective protection is provided for railway data safety, an original data structure is not changed, the influence on an existing system is small, meanwhile, high universality and expandability are achieved, and the method is suitable for protection requirements of various railway sensitive data.

An alloy performance prediction method fusing vision-language-process multi-modal data comprises the steps that a multi-modal data set of an alloy material is constructed, and the multi-modal data set comprises three kinds of modal input including process parameters such as temperature and time of solid solution and aging treatment, SEM image visual information and SEM image description text information and corresponding alloy mechanical property true values; training a visual encoder ResNet50 model through comparative learning and training a language encoder BERT model through mask language modeling to obtain an SEM image and vector codes of language description of the SEM image; splicing and fusing process parameters such as temperature and time of solid solution and aging treatment and the vector codes obtained in the second step, and training a random forest regression device according to corresponding alloy mechanical properties; and the random forest regression device obtained through training is used for alloy performance prediction. According to the method, the structured process data, the unstructured SEM image data and the derived text description data are subjected to collaborative fusion and joint modeling for the first time, complementarity among different modal data is fully utilized, and more comprehensive and more three-dimensional digital representation of the alloy state is constructed; the multi-modal fusion framework and the feature learning mechanism are suitable for wide material systems. Meanwhile, the adopted'depth representation + random forest 'hybrid model has the advantage of high training efficiency while ensuring high prediction precision.

The present invention discloses a faucet peeling machine, aiming to provide a faucet peeling machine that can realize the production line operation of faucet peeling and grinding with high work efficiency. It includes an operating platform and a dust cover, the dust cover is located on the top of the operating platform, the dust cover and the operating platform form a closed working chamber, a dust removal box is provided at the bottom of the operating platform, a peeling component, a grinding component and a mechanical gripper are provided in the working chamber, the peeling component and the grinding component are both slidably connected to the left and right side walls of the dust cover, the mechanical gripper is slidably connected to the top of the dust cover, the operating platform is located at the bottom of the dust cover, a clamp component is provided on the operating platform, and the clamp component is located in the working chamber. The beneficial effects of the present invention are: realizing the production line operation of faucet peeling and grinding with high work efficiency; realizing comprehensive peeling and grinding of faucets, improving product quality; and being environmentally friendly.

The utility model relates to a universal combined tool for turning a ball valve body, which comprises a bottom plate, a plurality of bases are uniformly distributed on the bottom plate, and positioning blocks and pressing devices are arranged on the bases; a T-shaped groove is formed in the base in the radial direction, a first T-shaped nut is arranged in the T-shaped groove in a sliding mode, and the positioning block is connected with the first T-shaped nut through a positioning locking bolt. Row-shaped base positioning pin holes are formed in the two sides of the base, matched positioning block pin holes are formed in the positioning block, the pressing device comprises a pressing block and a pressing screw rod, a supporting screw hole and an adjusting kidney-shaped groove are formed in the pressing block, the upper portion of the pressing screw rod is sleeved with a pressing nut, and the middle of the pressing screw rod is located in the adjusting kidney-shaped groove. The bottom of the adjusting waist groove is in threaded connection with a second T-shaped nut sliding in the T-shaped groove; supporting bolts are in threaded connection with the interiors of the supporting screw holes and sleeved with supporting nuts, the supporting nuts abut against the bottoms of the pressing blocks, and the heads of the supporting bolts abut against the base. The clamping device is firm in workpiece clamping structure, simple, easy to operate and wide in universality, and product machining quality and production efficiency are improved.

The utility model discloses a color matching lamp box convenient for observing metallic luster and texture, which belongs to the technical field of color matching lamp boxes and comprises a heightening frame, a light source box mounted at the top of the heightening frame and an observation box mounted at the bottom of the heightening frame, a diffusion plate is mounted in the heightening frame, and the light source box comprises a reflector and an LED lamp panel mounted on the reflector. A light source module is further installed on the diffusion plate and comprises an air pipe, an angle adjusting structure, a lamp holder and a lamp source, the air pipe is fixedly connected with the diffusion plate, the angle adjusting structure comprises a fixing shaft installed in the air pipe and a ball head rotatably installed on the fixing shaft, the lamp holder is installed on the ball head, and the lamp source is installed in the lamp holder. According to the color matching lamp box, through the arrangement of the light source module, light rays with different colors and different angles are provided to be projected to the metal surface, and a worker can conveniently observe the gloss and texture structure of the metal surface under the light rays with different colors and different angles.

The utility model discloses a movable automatic copper foil breadth detection device. The device comprises a movable rack assembly; the guide roller assembly is mounted at the top of the movable rack assembly and is used for guiding the copper foil; and the detection assembly is mounted at the top of the movable rack assembly and is used for detecting the breadth of the copper foil guided by the guide roller assembly. The beneficial effects of the utility model are that the movable rack can be transferred at will, and one device can measure the breadth of all splitting machines; the double-rotor linear motor drives the correlation laser sensor to detect, and moves from the two ends to the middle to detect the breadth of the copper foil. In addition, the photoelectric sensor is arranged at the front end of the laser sensor, approaching of the copper foil is detected in advance, speed reduction is carried out in advance, higher detection precision is guaranteed, and the accuracy of the breadth of the copper foil is guaranteed. The structure is simple, practicability is high, and universality is wide.

The present invention discloses a multi-purpose UV-LED light-curing high-hiding screen printing ink, including a varnish component and a color paste component; the varnish component is component A and / or component B; the color paste component is a color paste or a white color paste. The common UV-curing system inks on the market are of various types and different performances, and are all limited to a small application field and have poor applicability. In actual production, users have to purchase products of different types or characteristics to meet different needs, which brings great inventory pressure, and UV-curing products have a short shelf life, resulting in unnecessary waste of resources and environmental pressure. In order to solve the problems of the prior art, the present invention discloses a multi-purpose UV-LED light-curing high-hiding screen printing ink; specifically, the groundbreaking formula design and its unique application mode of the present invention well solve the above problems and provide users with a brand new application experience.

This utility model relates to a suspension positioning parameter fine-tuning compensation mechanism for FSAE racing cars, installed between the wheel and the suspension, comprising: a suspension pillar with an upper bearing surface and a lower bearing surface, both bearing surfaces having bolt holes; the U-shaped bottom surface of the upper U-shaped clamp having matching holes corresponding to the two bolt holes on the upper bearing surface, and being detachably connected to the upper bearing surface by bolts; the U-shaped bottom surface of the lower U-shaped clamp having matching holes corresponding to the two bolt holes on the lower bearing surface, and being detachably connected to the lower bearing surface by bolts; and a positioning parameter fine-tuning wedge, which is a sheet-like structure with a predetermined thickness and / or inclination angle, and is selectively or simultaneously fitted between the upper bearing surface and the upper U-shaped clamp, and between the lower bearing surface and the lower U-shaped clamp. This utility model, by replacing wedges of different thicknesses and / or inclination angles, allows for quick and precise fine-tuning of the wheel track and wheel camber angle without disassembling the suspension assembly, effectively compensating for accumulated manufacturing and assembly errors, and adapting to the high-frequency steering requirements of FSAE racing cars.

A radial material screening device and method are disclosed, relating to the technical field of material screening devices. The device includes a primary screening mechanism, a secondary screening mechanism, a screening channel, and a screening aperture control unit. The secondary screening mechanism includes a wheel-type sieve aperture inner diameter control unit, which is equipped with an elastic mimicry insert. The method includes screening out waste materials exceeding the upper and lower limits, and directionally dropping materials that meet the specified dimensions. This invention effectively solves the problem of poor adaptability of existing radial screening devices, which cannot be matched with automated production lines and affect subsequent processes. Through this invention, radial screening of materials can be achieved, removing waste materials exceeding the upper and lower limits, ensuring that the screened materials are fully free of impurities. Therefore, it will not interfere with subsequent automated production lines and can greatly improve the working efficiency of the entire production line.

The present application relates to a method and system for adaptive adjustment of optical image detection threshold based on reinforcement learning, belonging to the field of machine vision and intelligent detection technology, which solves the technical problems of existing industrial vision detection, such as threshold dependence on manual setting, lack of adaptability leading to decline in detection accuracy, and inability to optimize in real time. The solution is: a method for adaptive adjustment of optical image detection threshold based on reinforcement learning, including the following steps: S1, collecting the original image of the measured object; S2, preprocessing the original image; S3, constructing a state vector based on multi-dimensional feature quantities; S4, outputting actions by a reinforcement learning strategy network; S5, updating the detection threshold based on the actions and applying it; S6, calculating the detection quality evaluation index and the reward signal; S7, modeling and training the reinforcement learning strategy network and updating the parameters to form a threshold adaptive adjustment strategy. Compared with the prior art, the present application has the advantages of not depending on manual setting, strong adaptability, high precision, real-time optimization, and wide applicability.

The invention relates to the technical field of resource supervision, and particularly provides a supervision method and device, and the method comprises the following steps: S1, a cloud platform manager carries out the identity information authentication of an enterprise and an organization through a block chain module; s2, after the authentication is passed, obtaining resource information of the enterprise and the organization; s3, a collaborative filtering algorithm is applied, and a resource exchange smart contract is formed under the consensus of the cloud platform manager and the resource user; s4, the cloud platform manager transmits resource reconciliation table data information generated by the enterprise and organization resource information to a data warehouse front-end processor; s5, the platform manager pushes resource reconciliation table data to the resource user; and S6, if the resource data is updated, circulating the step S1 to the step S6. Compared with the prior art, the cloud supervision data can be rapidly and accurately obtained, safe, credible and effective data can be provided, the method has wide universality in other fields, and managers of enterprises and organizations can obtain key information at the first time.

The utility model discloses a medical detection test solution homogenizer which comprises a base and a homogenizing mechanism, the base is provided with a vertical rod, and the homogenizing mechanism is mounted on the vertical rod and moves along the vertical rod; the homogenizing mechanism comprises a transverse plate, a lifting motor, a homogenizing motor, a stirring blade, a grinding wheel and a frame body; the frame body, the lifting motor and the homogenizing motor are fixedly connected to the transverse plate, and the lifting motor is connected with the vertical rod to drive the homogenizing mechanism to move along the vertical rod so as to adjust the height position of the homogenizing mechanism; the frame body is provided with a stirring cavity; the bottom end of the stirring cavity is open; a rotor of the homogenizing motor penetrates through the transverse plate and is connected with the stirring blade and the grinding wheel, and the stirring blade and the grinding wheel are positioned in the stirring cavity; the frame body is provided with a discharging groove which is located above the grinding wheel. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

This invention relates to the field of new energy power generation and energy storage, and in particular to a method and system for limiting power distribution, comprising: setting a total power distribution capacity limit value, wherein the total power distribution capacity limit value is an unsigned value representing the maximum absolute value of power allowed at the grid connection point; calculating in real time the total active power at the connection point between the new energy grid-connected equipment and the power distribution facilities; dynamically calculating the power output limit value of the new energy grid-connected equipment based on the total power distribution capacity limit value and the total active power through a closed-loop control algorithm, wherein the power output limit value includes a positive power limit value and a negative power limit value; and controlling the output power of the new energy grid-connected equipment using the positive power limit value and the negative power limit value as boundaries. This invention, through detailed parameter settings, signal processing, algorithm calculation, and hardware control procedures, fully realizes bidirectional power distribution limitation, effectively protecting the safety of user-side power distribution facilities.